doc: Update alternatives link for AQuaLEED and mention possible docker image

[Liam-Deacon]

Fix broken AQuaLEED link (after searching online) for updating ReadTheDocs generated text

• Part of Improve Documentation #78

[codacy-production]

Coverage summary from Codacy

See diff coverage on Codacy

Coverage variation	Diff coverage
✅ +0.00% (target: -1.00%)	✅ ∅

Coverage variation details

	Coverable lines	Covered lines	Coverage
Common ancestor commit (690b484)	3615	28	0.77%
Head commit (bc6e58a)	3615 (+0)	28 (+0)	0.77% (+0.00%)

Coverage variation is the difference between the coverage for the head and common ancestor commits of the pull request branch: <coverage of head commit> - <coverage of common ancestor commit>

Diff coverage details

	Coverable lines	Covered lines	Diff coverage
Pull request (#81)	0	0	∅ (not applicable)

Diff coverage is the percentage of lines that are covered by tests out of the coverable lines that the pull request added or modified: <covered lines added or modified>/<coverable lines added or modified> * 100%

See your quality gate settings    Change summary preferences

_{You may notice some variations in coverage metrics with the latest Coverage engine update. For more details, visit the documentation}

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (690b484) 0.77% compared to head (bc6e58a) 0.77%.

Additional details and impacted files

@@          Coverage Diff           @@
##           master     #81   +/-   ##
======================================
  Coverage    0.77%   0.77%           
======================================
  Files          14      14           
  Lines        3615    3615           
======================================
  Hits           28      28           
  Misses       3587    3587           

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.